Wiring a "system" into My 73 Beetle

[BeetleNewbie]

Hey all, I'm new to the board, and was wondering about my 73' beetle.
I got the car for free, and it is in need of some cosmetic restorations. I'll start thinking about the mechanical upgrades later on :-).

Being a total newbie to all of this, I have a question that might sound quite stupid...

If I wanted to wire a brand new amplifier, sub-woofer, head unit and 4 tweeters into my volkswagen...would it be able to handle it?

If not, how would I be able to modify the car so that it WILL handle it?

Also, I need to restore the inside of the car.
This means I need to have the front panel/dashboard redone. It's old and cracked, and it needs new switches and gauges. Any ideas on that?

Also, I'd like to install some really nice "race" or "bucket" seats for the driver/passenger seats in the front...and I am totally clueless what to do with the back. I don't know whether I can replace it, or change it...or what? I do, however, need the seats in the back for the passenger/cargo space.

Finally, what can I do with the "flooring" of the car?

I'm working with a budget of about 1500$ for the interior of the car. I'm not a mechanic myself...so whatever work that has to be done will be done by my uncle/grandfather OR mechanic.

Everybody's input is greatly appreciated.

|TempesT|